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5 MONITORING
5.1 Explanation of monitor signals
*1 This is selectable when using the drive recorder.
*2 Available on servo amplifiers with firmware version A5 or later.
*3 Available on servo amplifiers with firmware version B0 or later.
V-phase current feedback
This indicates the V-phase current value applied to the servo motor in
internal units.
Encoder error counter
This indicates the cumulative number of errors during communication with
the encoder.
Load-side encoder error
counter
This indicates the cumulative number of errors during communication with
the load side encoder.
Operation mode
The control modes of the servo amplifier are displayed.
The following shows the value of each control mode.
Position control mode: -20
Speed control mode: -21
Torque control mode: -22
Test operation mode (JOG operation): -1
Test operation mode (Positioning operation): -2
Test operation mode (Output signal (DO) forced output): -4
Test operation mode (Machine analyzer): -6
Model position deviation
This indicates the position deviation between the model and servo motor.
This indicates the speed command being applied to the servo motor.
Droop pulses (command
unit)
The number of droop pulses in the deviation counter is displayed. The
number of pulses displayed is in the command unit.
U-phase current feedback
(unit of the rated current)
The value of the U-phase current flowing in the servo motor is displayed in
increments of 0.1 % in relation to the rated current as 100 %.
V-phase current feedback
(unit of the rated current)
The value of the V-phase current flowing in the servo motor is displayed in
increments of 0.1 % in relation to the rated current as 100 %.
W-phase current feedback
(unit of the rated current)
The value of the W-phase current flowing in the servo motor is displayed
in increments of 0.1 % in relation to the rated current as 100 %.
Name
Description
Availability
Display all
Graph
function
Analog
monitor